Warping spool



July 19, 1 932. H D. CLINTON WARPING SPOOL Filed Oct. 31, 1928 2Sheets$heet 1 July 19, I H D CLINTON 1,868,408 v 5 WARPING SPOOL FiledOct. 31, 1928 2 Sheets-Sheet 2 awn/M100. [far/:91). 67272 $072 PatentedJuly 19, 1932 PATENT OFFICE HARRY D. CLINTON, OF JOHNSON CITY, NEW YORKWARPIN G SPOOL Application filed October 31, 1928. Serial No. 316,211.

This invention relates to textile spools and more particularly to thoseknown as warping spools for use in feeding yarn strands ontobeam-cylinder or ball warps preparatory to weaving fabrics. It aims toprovide spools of a construction adapted to special loading andarrangement for feeding yarn according to the novel method of high-speedwarping set forth in my U. S. Patent No. 1,639,927 dated August 23,1927, for method and means for high-speed warping.

The invention will be best understood upon further description withreference to the accompanying drawings wherein embodiments filthereofare illustrated in loading and-in feeding positions.

In said drawings: Fig. 1 is an elevation of one form of spool embodyingthe invention represented on a winding-spindle for loading;

Fig. 2 is an end elevation of said spool, showing the manner of securingthe end of an innermost winding of yarn to the outside thereof;

Fig. 3 is a view representing a pair of the spools as arranged on acreel-rack for uninterrupted feed of yarn according to a special methodof high-speed warping;

Fig. 4 is an elevation'of a modified form of spool likewise representedon a windingspindlefor loading, the said spindle being shown partly insection;

Fig. 5 is an end elevation of the modified form of spool showing themanner of similarly-securing the end ofan innermost winding of yarn tothe outside thereof; and

Fig. 6 is an elevation showing a detail of the modified spoolconstruction.

In the illustrative embodiments, spools of conventional type are shownrespectively comprising a hollow or axially bored barrel 5 having fiatdisc-like heads 6 secured on opposite ends thereof. This barrel isusually made of wood, while the heads are preferably formed from hardvulcanized-fibre or other composition resisting breakage under roughusage conditions. These heads are rigidly secured to'the barrel ends bycentrally bored wooden plugs or bushings 7 driven thereinto throughcentral frusto-conical and notched or ribbed openings in the heads, saidplugs being formedwith enlarged tapering headportions resultantlycompressed within said apertures in the heads and with reducedgluecoated shank-portions fitting into the bore or receptivecounter-recesses formed in the barrel ends.

The head on one end of the barrel in both forms of spool is shown cutthrough on a substantially radial line to provide a narrow slot-opening8 in this instance extending from the periphery of the barrel to theperiphery of the head. The edges of the head along the out areadvantageously beveled or rounded smoothly as indicated, so as toobviate possibility of cutting the yarn or thread wound onto the spool.In some cases obviously this opening through the head might extend onlypartially toward the heads periphery or in other words may be formed asa part-length slot or elongate hole instead of the full-length slotshown, but it should always exten inwardly to a point where the innerface of the head contacts with the barrel. 7

In the form of spool illustrated in Figs. 1 and 2, the plu or bushing 7at the end holding the slotte head to the barrel is left projectingsomewhat beyond the outer face of said head, while the plug at the otherend is trimmed ofl' substantially flush with the head at that end. Theprojecting plug in effect providing an axial extension of the spoolbarrel is lathed or trimmed to bottle-neck form to provide a groove 7*therein contiguous to the outer face of the head. Said plug is alsoaxially counter-bored to a depth substantially level with the outer faceof the head so as to give its projection the form of a ring. In thisprojection, narrow slits 7 are shown cut on lines of chords thereacrossto a de th preferably less than that of the counterore.

Spools of this construction may be loaded and used for general purposeslike any ordinary s 001, but are specially adapted to unusual loadingand arrangement for magazine or continuous feed 0 yarn in high-speedwarping operations according to. the novel method hereinbeforementioned,wherein the yarn is drawn oif the ends of the spools or m loo the spoolis placed on the spindle with its slot-- ted head up but this particularform of spool may be applied with either end or head resting on thespindle cup.

A traveller-guide represented by the eye leted member 11 is shown in theupper position of its movement up-and-down or backand-forth in parallelrelation to said spindle (or to the barrel of the spool thereon) forevenly guiding a thread a or strand of yarn onto the spool barrel duringrotation with the spindle, From a supply bobbin (not shown), a strand ofyarn 12 is shown passingthrough said traveller-guide to and partlyaround the spool barrel, thence through the slot 8 to the outside faceof the spool head and then several times around the projecting plug 7within the groove 7 where its end is finally engaged in one or more ofthe slits 7 in said plug (see Figs. 1 and, 2). In thus fastening the endof the yarn, it is advantageously extended across the plug as shown inFig. 2 so that it may be grasped more easily when .desired to disengageor loosen it after the spool is loaded.

As thus extended through and fastened at the outside of one of the spoolheads, the end of the yarn is kept from flying around and is alsoshielded while the spool is rotated for loading through thetraveller-guide, and when the spool has been fully loaded by the yarnwindings thereon, the trailing end of its innermost winding will be leftextending outwardly from the loaded barrel for connection with thestrand on another spool after first loosening to hang free.

In Fig. 3, a pair of the spools loaded as described are represented on acreel-rack in arrangement for magazine or continuous feed of the yarn inhigheed warping operations wherein the yarn is drawn off the ends of thespools according to the method described and claimed in my aforesaidPatent No. 1,639,927 dated August 23, 1927. In said figure, the spools(with projecting plug down) 5 own engaged'over axis-pins 13 inclined toa common take-off eyelet 14 equi spaced fromthe spool ends, throughwhichvthe feeding yarn strand is passed to and through atensioning-device 15 between guide-eyelets 16 and from there to the backcomb-member of i a warper machine (not shown).

In this arrangement, the trailing end of the yarn on the feeding spoolis shownconnected to the leading endof the yarnon the other or nextsupply spool, while-the trailingend of of the yarn-on the latter iss'ho'wnhanging for like connection ;with the. leading end of the areyarn on still another spool to replace the first one. As soon as theyarn on the feeding spool is exhausted, the feed is uninterrupted lytransferred to the other spool, and the emptied spool is then replacedbyanother loaded s pool which is similarly connected to the continuingfeed spool. A plurahty of the spools may be arranged and successivelyconnected in this manner, so that a continuous and uninterrupted supplyof yarn will be assured during the entire warping operation.

The described magazine feed arrangement of the spools is possible onlywhen the innermost or trailing ends of the yarn thereon extend outwardlyfor free connection with the leading end of yarn on other spools, butit' is not customary to .load spools in this manner. Moreover, theordinary warping spools are not adapted for loading in this way, and ifattempt to do so were made, the necessarily loose end of the yarn wouldsimply slip off the barrel with rotating pull or fly wild until itbecame entangled with the am feeding onto the spool, which would 02course result in I breakage of the yarn.

The invention therefore provides a special kind or form of spoolermitting the innermost end of yarn 10a ed thereon to be extended andfastened to an outside part for holding it taut and shielded from thewinder mechanism during the loading operation and leavin after t e spoolis loaded. Such spools have this particular and important advantage overthe ordinary warping spools for the stated'purpose, and the addedadvantage that they will not easily break nor cause injury to the handsin common usage, so that the invention supplies a distinct need in theart.

In the modified form of spool illustrated in Figs. 4 and 5, the plugs 7at both ends are trimmed ofi substantially flush with the heads, and inlace of the projecting plug of the spool first escribed, twoslip-catches 9 are fixed on the outside face of the slotted head. Thesecatches are in this instance provided by it accessible like theoutermost end,

small 'metal washers held close against the ever, it is advisable to.apply them to-the winding-spindles with 7 their slotted heads down orresting on the spindle cups to preventpossible injury to the hand inrasping to remove from the spindle while still rotatmg. v

The manner of loading the modified form of spool is illustrated in Fig.4 wherein the slotted head is shown resting on the spindle cup with theslip-catches 9 encompassed by slip-catches may be placed near t thelatter. In this instance the travellerguide 11 is in the lower positionof its movement and theloading strand of yarn 12 is shown passingtherethrough to and partly around the spool barrel, thence through theslot 8 to the outside face of the spool head and then over the latter tothe two slipcatches around which its end is looped several times againstslippage (see Fig. 5). Otherwise, the special loading of the spool isthe same as the other, and these spools when loaded are arranged formagazine feed of the yarn. in exactly the same way as hereinbeforedescribed with reference to said other form of spool.

In spools of the modified form having heads of a diameter substantiallygreater than the supporting cup of the winding s indle, the

e peripheral edge of the head beyond the edge of said cup, rather thanclose to the plug so as to be encompassed by the cup"as herein shown.

Obviously, spools adapted for loading with the innermost end of the yarnthereon ex tending outwardly from thebarrel may be made in various formswithout departing from the spirit and scope of this invention, theessential purpose of which is to provide for fastening the yarn end tothe outside of the spool without extending it across the inner face ofeither head and b means which will not allow entanglement uring loadingnor cause breakage of the yarn or other spools when put in use andthrown about. Accordingly, while certain restrictions are necessarilyimposed, it is, not intended that the invention shall be limited by theappended claims to the specific construction shown and described.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

In a spool embodying a barrel having disc-like heads of a diametersubstantially greater thanitsbarrel, means adapting the end of-theinnermost winding of yarn strand thereon to be extended outwardly to andfastened at the outer side'of one of its heads without passing such endacross the inside face of such head; said means including a point ofsaid groove on narrow'radial slot through said one of the heads from aoint in the latters periphery to a point of 1ts juncture with thebarrel, a short axial extension of the barrel beyond the face of saidhead, a peripheral groove in said extension close to the outer surfaceof said head, and parallel slits across the end of said extensionextending to the deepest spool axis.

2. In a warping spool embodying a barrel I having flat disk-like headsofa diameter substantially greater than the barrel, means pro- .viding forthe end of the innermost winding of yarn on the barrel to be extendedoutwarddeepest point of said groove on opposite sides I of the spoolaxis.

In testimony whereof I afiix m signature.

HARRY D. G INTON.

opposite sides of the the inside face of the head; said

